ASTROSAT CZTI

Data Quality Report

Orbit 05722

Creation date: 2024-06-27T14:58:23.324668
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A02_098T01_9000000736_05722cztM0_level2.evt modeM0/AS1A02_098T01_9000000736_05722cztM0_level2_quad_clean.evt
Size (bytes)532,704,96091,261,440
Size508.0 MB 87.0 MB
Events in quadrant A3,679,156561,304
Events in quadrant B4,846,932555,726
Events in quadrant C3,325,037574,519
Events in quadrant D3,770,042547,285

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163052
B0193121
C0154631
D0164261

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75431331.763224%
B75432283.022670%
C7543110.145831%
D7543710.941270%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7573 7544 80 80 1.06% 1.06%
B 7573 7544 129 129 1.70% 1.71%
C 7573 7544 0 0 0.00% 0.00%
D 7573 7544 37 37 0.49% 0.49%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 50 286499 1600.72 868 847 178.5
A 13 14 13016 68.19 868 847 178.5
A 14 31 12788 66.91 868 847 178.5
B 15 204 728121 4346.28 869 849 167.3
B 5 172 400833 2390.36 869 849 167.3
B 11 51 90896 538.13 869 849 167.3
C 1 16 7428 33.27 846 851 197.7
C 13 61 7018 31.19 846 851 197.7
C 10 34 6974 30.97 846 851 197.7
D 2 152 117672 565.76 843 815 206.6
D 11 241 102529 492.44 843 815 206.6
D 4 95 70342 336.61 843 815 206.6

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter